(Q46354674)
Statements
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Trends in twin birth outcomes and prenatal care utilization in the United States, 1981-1997. (English)
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M D Kogan
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G R Alexander
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M Kotelchuck
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M F MacDorman
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P Buekens
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J A Martin
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E Papiernik
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1 July 2000
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284
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3
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335-341
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Identifiers
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